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Flat Washer
Model MS9320-12
Quick Information about MS9320-12
Steel comp 4130 overall material, nickel and cadmium overall surface treatment.
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Product Details
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NSN:5310-00-184-8974 (5310001848974)
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Cross Shape:Rectangular
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Hole Diameter:Between 0.396 inches and 0.411 inches
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Edge Shape:Round
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Center Shape:1 round
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Center Shape:Round
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Thickness:Between 0.073 inches and 0.083 inches
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Overall Diameter:Between 0.740 inches and 0.760 inches
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Hardness Rating:Between 35.0 rockwell c and 40.0 rockwell c
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Surface Finish:63.0 microinches bottom
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Surface Finish:63.0 microinches top
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Material Specification:Ams 6350 assn standard single material response
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Surface Specification:Ams 2416 assn standard single treatment response
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Specification Data:81343-ms9320-12 professional/industrial association specification
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Schedule B Code:7318220000
Classification
Washers other than lock washers, iron or steel
Definition Flat Washer
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Part Identification
Part Materials
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
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